PLC由哪几部分硬件组成?
PLC的硬件 般由主机、I/O扩展机及外部设备组成。
(1)主机包括:微处理器(MPU)。常用的微处理器有:Z80A、8085、M6800、M6809、8086、M68000。单片机有:8039、8031、M6801。
存储器:PLC的存储器用于存储程序和数据, 般采用ROM或EPROM。
I/O接口:I/O接口是主机与外部设备、I/O模块等的连接部件,用于扩弃PLC总线的驱动能力输入输出点数。
(2)电源:电压范围在160VAC-260VAC。
(3)输入/输出模块:用于调理输入输出信号,对输入信号进行滤波、隔离、电平转换等。包括直流开关量输入模块,交流开关量输入模块,直流开关量输出模块,交流开关量输出模块。
(4)功能模块:包括A/D模块和D/A模块,温度传感器模块,高速计数模块,PID模块,远程I/O模块,通讯模块。
(5)扩展口
(6)编程器
(7)其他外设:打印机,显示器。
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ZANDER 2050XP HIGH PRESSURE FILTER ELEMENT 20" LONG X 1-1/2" ID
ZELLWEGER ANALYTICS LIFELINE II GAS SENSOR 2110B2035 /TRANSMITTER 2110B2400
ZKL SPHERICAL ROLLER BEARING 22315W33J C3
ZOELLER 1 HP SUMP PUMP MODEL N140 N140-C 1-1/2" NPT PORT 115 VAC 1 PHASE
ZOELLER 30-0030 Full Flow Check Valve 3" PVC
ZOELLER 30-0030 Full Flow Check Valve 3" PVC
ZYIA .5 - 5 GPM FLOW METER WITH 1/2" NPT STAINLESS STEEL ENDS
(10) ALUMINUM U-GROOVE SLOTTED 40" DIN RAIL 1-3/8" WIDE LOT OF 10
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(10) B-LINE 1-1/4" STD STAINLESS STEEL SUPER STRUT STRAP PIPE CLAMP B2011
(10) B-LINE 1-1/4" STD STAINLESS STEEL SUPER STRUT STRAP PIPE CLAMP B2011
(10) BRIDGEPORT 3" SET SCREW CONNECTOR ZINC EMT/RIGID 237-DC2 LOT OF 10
(10) BUSSMAN FUSETRON 3-2/10 AMP FUSE TRS3-2/10R BOX OF 10
(10) BUSSMANN FUSETRON DUAL ELEMENT TIME DELAY CLASS RK5 FUSE FRS-R-4/10
(10) BUSSMANN FUSETRON FRN-3/10 FUSES LOT OF 10
(10) BUSSMANN FUSETRON FRN-R-1 FUSES BOX OF 10
(10) BUSSMANN FUSETRON FRN-R-1-1/4 FUSES BOX OF 10
(10) BUSSMANN FUSETRON FRN-R-2 FUSES BOX OF 10
(10) BUSSMANN FUSETRON FRN-R-45 FUSES LOT OF 10
(10) BUSSMANN FUSETRON FRN-R-6-1/4 FUSES BOX OF 10
(10) CHICAGO HARDWARE 3/8" X 16" X 3/4" EYBOLT TURNED WIRE 4P807 LOT OF 10
(10) CLIPPER UX1S24 STAINLESS STEEL UNIBAR 24" STRIPS THICKNESS 1/8"-5/32"
(10) CRUSH-A-CLAMP 034N040 CUSHIONED CLAMP TUBE SIZE 2 1/8 IN LOT OF 10
(10) CRUSH-A-CLAMP 034N040 CUSHIONED CLAMP TUBE SIZE 2 1/8 IN LOT OF 10
(10) FAFNIR PEER MRC SHIELED BALL BEARING 6203ZZ12C3 203KRR2 205KDD
(10) FERRAZ SHAWMUT TRI-ONIC 3 AMP 600VAC FUSES TRS3R BOX OF 10
(10) FERRAZ SHAWMUT TRI-ONIC 3 AMP 600VAC FUSES TRS3R BOX OF 10
(10) FUSETRON 8/10 AMP FUSE 600 VAC DUAL ELEMENT TIME DELAY FRS-R-8/10
(10) GOULD AMP-TRAP FUSE A6Y6 6 AMP 600 V AC BOX OF 10
(10) IVES CASEMENT FASTNERS ALUMINUM 66 A92 SS LOT OF 10
(10) IVES CASEMENT FASTNERS ALUMINUM 66 A92 SS LOT OF 10
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(10) MCGILL MI 6 N NEEDLE BEARING INNER RACE LOT OF 10
(10) SAIT 23462 TYPE 1 12 X 1/8 X 20MM PORTABLE SAW CUT-OFF WHEELS 6300 RPM
(10) SAIT 23462 TYPE 1 12 X 1/8 X 20MM PORTABLE SAW CUT-OFF WHEELS 6300 RPM
(10) SAIT 23462 TYPE 1 12 X 1/8 X 20MM PORTABLE SAW CUT-OFF WHEELS 6300 RPM
(10) SLATER 15 AMP 125 V GREY STANDARD RECEPTACLE LOT OF 10
(10) SPRAY SYSTEMS H3/8U STAINLESS STEEL SPRAY NOZZLE 3/8" MNPT LOT OF 10
(10) SPRAY SYSTEMS H3/8U STAINLESS STEEL SPRAY NOZZLE 3/8" MNPT LOT OF 10
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(100) ALFLEX 55-08-27-03 GRAY 3/4" LIQUID-TITE FLEXIBLE CONDUIT 100 FOOT
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(12) TRI DIM 24" X 40" TRI-DEK 3/67 2-PLY 1ink HVAC FILTERS LOT OF 12
(12) BOX OF 12 PHILIPS 500W HALOGEN QUARTZ BULB 120 VOLT 500T3Q/CL
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(13) GOULD 30 AMP MIDGET FUSE BLOCKS 600 VAC 30310 LOT OF 13
(13) ALLEN BRADLEY 1492-FB1C30 FUSE HOLDERS 30 AMPS 600 VAC
(13) LOT OF 13 FLOWLINE 1-1/2" 2" 45DEG ELBOW STAINLESS ADAPTER SANITARY TEE
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(2) JOHNSON CONTROLS BASO J999MDA-2 MULTI MOUNT UNIVERSAL REPLACMENT PILOT
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